The machine tap for metric ISO-threads is suitable in machine use for cutting inner threads in machine use. The DIN 371 version has a reinforced shank (up to M10) and the DIN 376 version has a straight flute.
The combination taps with square shank are manufactured according to the factory standard. They are used for drilling and tapping with just one tool. They are suitable for any stationary drilling machine with switchable rotational speeds for through holes in materials up to 600 N/mm² longitudinal strengths.